85.7 Summary Properties of Dislocation Li ine imperfection 2. It must be a continuous line running through the crystal or a closed loop 3. Its character can be described by I and b 4. The physical meaning and the conservation of b 5. Rule governing the relation among oj7)v§5.7 Summary —— Properties of Dislocation 1. Line imperfection. 2. It must be a continuous line running through the crystal or a closed loop. 3. Its character can be described by and . 4. The physical meaning and the conservation of . 5. Rule governing the relation among . l b   b  v ij    → →